Triton Cave, Haines' Ravine. New York Sterecope Card.

New York stereoscopic card.

Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who assembled it over a period of more than six decades, Robert N. Dennis (1900-1983).

Stereographs consist of two nearly identical photographs or photomechanical prints, paired to produce the illusion of a single three-dimensional image, usually when viewed through a stereoscope. Stereographs were produced from the 1850s to the 1940s, with the bulk between 1870 and 1920.

Catskill Mountains Нью-Йорк Отделение репродукций и фотографий miriam and ira d wallach коллекция фотографий пещера тритонов высокое разрешение loeffler j john jacob 1834 1901 фотограф Catskill Mountains Нью-Йорк стереоскопические виды тритон пещера Хайнс овраг Соединенные Штаты Роберт Деннис коллекция стереоскопических изображений 19 век штат Нью-Йорк публичная библиотека Нью-Йорка

1858 - 1900

New York Public Library

http://digitalcollections.nypl.org/

Creative Commons CC0 1.0 Universal Public Domain Dedication ("CCO 1.0 Dedication")